<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="watch-example">
        <p>
            Ask a yes/no question:
            <input v-model="question">
        </p>
        <p>{{ answer }}</p>
    </div>
    <script src="../js/vue.js" charset="utf-8"></script>
    <script src="https://unpkg.com/axios@0.12.0/dist/axios.min.js"></script>
    <script src="https://unpkg.com/lodash@4.13.1/lodash.min.js"></script>
    <script type="text/javascript">
        var vm = new Vue({
            el: '#watch-example',
            data: {
                question: '',
                answer: 'I cannot give you an answer until you ask a question!'
            },
            watch: {
                question: function (newQuestion) {
                    this.answer = 'Wating for you to stop typing...';
                    this.getAnswer();
                }
            },
            methods: {
                getAnswer: _.debounce(
                    function () {
                        var vm = this;
                        if(this.question.indexOf('?') === -1) {
                            vm.answer = 'Question usually contain a question mark.';
                            return;
                        }
                        vm.answer = 'Thinking...';
                        axios.get('https://yesno.wtf/api')
                        .then(function (response) {
                            console.log(response);
                            vm.answer = _.capitalize(response.data.answer)
                        })
                        .catch(function (error) {
                            vn.answer = 'Error! Could not reach the API. ' + error
                        })
                    },
                    500
                )
            }
        })
    </script>
</body>
</html>
